pantotheria

English Thesaurus

1. generalized extinct mammals widespread during the Jurassic; commonly conceded to be ancestral to marsupial and placental mammals (noun.animal)

hypernym	:	class,
definition	:	(biology) a taxonomic group containing one or more orders (noun.group)

member meronym	:	class mammalia, mammalia,
definition	:	warm-blooded vertebrates characterized by mammary glands in the female (noun.animal)